000			00333nam a2200133Ia 4500
008			140317s9999 xx 000 0 und d
082			_a633.4
100			_aWalker,John Charles.
245			_aDiseases of vegetable crops.
260			_aN.Y. _bMcGraw-Hill. _c1952
300			_a529
653			_aRoot and Tuber Crops.
942			_2ddc _cBK
999			_c4560 _d4560